<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryRef" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="班级名称" prop="className">
        <el-input v-model="queryParams.className" placeholder="请输入" clearable @keyup.enter="handleQuery" />
      </el-form-item>
      <el-form-item label="所属课程" prop="courseId">
        <el-select v-model="queryParams.courseId" placeholder="请选择" clearable>
          <el-option v-for="item in selectCourses" :key="item.courseId" :label="item.courseName"
            :value="item.courseId" />
        </el-select>
      </el-form-item>
      <el-form-item label="班主任" prop="teacherId">
        <el-select v-model="queryParams.teacherId" placeholder="请选择" clearable>
          <el-option v-for="item in selectTeachers" :key="item.teacherId" :label="item.teacherName"
            :value="item.teacherId" />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
        <el-button icon="Refresh" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button type="primary" plain icon="Plus" @click="handleAdd" v-hasPermi="['exam:classz:add']">新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="success" plain icon="Edit" :disabled="single" @click="handleUpdate"
          v-hasPermi="['exam:classz:edit']">修改</el-button>
      </el-col>
      <right-toolbar v-model:showSearch="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="classzList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="班级名称" align="center" prop="className" />
      <el-table-column label="所属课程" align="center" prop="courseName" />
      <el-table-column label="学员数" align="center" prop="stuCnt" />
      <el-table-column label="成立时间" align="center" prop="createdTime" width="180">
        <template #default="scope">
          <span>{{ parseTime(scope.row.createdTime, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="班主任" align="center" prop="teacherName" />
      <el-table-column label="学员操作" align="center" class-name="small-padding fixed-width">
        <template #default="scope">
          <el-button link type="primary" icon="Plus" @click="handleAddStudent(scope.row, 'add')">添加</el-button>
          <el-button link type="primary" icon="Minus" @click="handleAddStudent(scope.row, 'del')">删除</el-button>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template #default="scope">
          <el-button link type="primary" icon="Edit" @click="handleUpdate(scope.row)"
            v-hasPermi="['exam:classz:edit']">修改</el-button>
          <el-button link type="primary" icon="Delete" @click="handleDelete(scope.row)"
            v-hasPermi="['exam:classz:remove']">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination v-show="total > 0" :total="total" v-model:page="queryParams.pageNum"
      v-model:limit="queryParams.pageSize" @pagination="getList" />

    <!-- 添加或修改班级管理对话框 -->
    <el-dialog :title="title" v-model="open" width="500px" append-to-body>
      <el-form ref="classzRef" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="班级名称" prop="className">
          <el-input v-model="form.className" placeholder="请输入班级名称" />
        </el-form-item>
        <el-form-item label="所属课程" prop="courseId">
          <el-select style="width: 100%;" v-model="form.courseId" placeholder="请选择" clearable>
            <el-option v-for="item in selectCourses" :key="item.courseId" :label="item.courseName"
              :value="item.courseId" />
          </el-select>
        </el-form-item>
        <el-form-item label="班主任" prop="teacherId">
          <el-select style="width: 100%;" v-model="form.teacherId" placeholder="请选择"
            clearable>
            <el-option v-for="item in selectTeachers" :key="item.teacherId" :label="item.teacherName"
              :value="item.teacherId" />
          </el-select>
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
    <AddStudent v-model:visible="showAddStud" :classId="selectClassId" :operated="selectType" @finish="getList"/>
  </div>
</template>

<script setup name="Classz">
import {
  listClassz,
  getClassz,
  delClassz,
  addClassz,
  updateClassz,
  teacherSelectList
} from "@/api/exam/classz";
import { queryCourseList } from '@/api/analyse.js'
import AddStudent from './addStudent.vue'
const { proxy } = getCurrentInstance();
// 下拉数据列表
const selectTeachers = ref([])
const selectCourses = ref([])
const selectClassId = ref(null)
const selectType = ref('add')
const showAddStud = ref(false)
// 
const classzList = ref([]);
const open = ref(false);
const loading = ref(true);
const showSearch = ref(true);
const ids = ref([]);
const single = ref(true);
const multiple = ref(true);
const total = ref(0);
const title = ref("");

const data = reactive({
  form: {},
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    className: null,
    courseId: null,
    teacherId: null,
  },
  rules: {
    className: [
      { required: true, message: "班级名称不能为空", trigger: "blur" }
    ],
    courseId: [
      { required: true, message: "所属课程不能为空", trigger: "change" }
    ],
    teacherId: [
      { required: true, message: "班主任不能为空", trigger: "change" }
    ],
  }
});

const { queryParams, form, rules } = toRefs(data);
// 获取下拉
const getSelectList = () => {
  teacherSelectList().then(response => {
    if (response.code === 200) {
      selectTeachers.value = response.data
    }
  });
  queryCourseList().then(response => {
    if (response.code === 200) {
      selectCourses.value = response.rows
    }
  });
}
/** 查询班级管理列表 */
function getList() {
  loading.value = true;
  listClassz(queryParams.value).then(response => {
    classzList.value = response.rows;
    total.value = response.total;
    loading.value = false;
  });
}

// 取消按钮
function cancel() {
  open.value = false;
  reset();
}

// 表单重置
function reset() {
  form.value = {
    className: null,
    courseId: null,
    teacherId: null,
  };
  proxy.resetForm("classzRef");
}

/** 搜索按钮操作 */
function handleQuery() {
  queryParams.value.pageNum = 1;
  getList();
}

/** 重置按钮操作 */
function resetQuery() {
  proxy.resetForm("queryRef");
  handleQuery();
}

// 多选框选中数据
function handleSelectionChange(selection) {
  ids.value = selection.map(item => item.classId);
  single.value = selection.length != 1;
  multiple.value = !selection.length;
}

/** 新增按钮操作 */
function handleAdd() {
  reset();
  open.value = true;
  title.value = "添加班级";
}
/** 新增按钮操作 */
function handleAddStudent(item, type) {
  selectClassId.value = item.classId
  selectType.value = type
  showAddStud.value = true
}

/** 修改按钮操作 */
function handleUpdate(row) {
  reset();
  const _classId = row.classId || ids.value
  getClassz(_classId).then(response => {
    form.value.classId = response.data.classId;
    form.value.className = response.data.className;
    form.value.courseId = response.data.courseId;
    form.value.teacherId = Number(response.data.teacherId) || null;
    open.value = true;
    title.value = "修改班级";
  });
}

/** 提交按钮 */
function submitForm() {
  proxy.$refs["classzRef"].validate(valid => {
    if (valid) {
      if (form.value.classId != null) {
        updateClassz(form.value).then(response => {
          proxy.$modal.msgSuccess("修改成功");
          open.value = false;
          getList();
        });
      } else {
        addClassz(form.value).then(response => {
          proxy.$modal.msgSuccess("新增成功");
          open.value = false;
          getList();
        });
      }
    }
  });
}

/** 删除按钮操作 */
function handleDelete(row) {
  const _classIds = row.classId || ids.value;
  proxy.$modal.confirm('是否确认删除该班级信息？').then(function () {
    return delClassz(_classIds);
  }).then(() => {
    getList();
    proxy.$modal.msgSuccess("删除成功");
  }).catch(() => { });
}
getSelectList()
getList();
</script>
